Chables e



(No Model.)

" C. E. TEFFT v8v J. M. SMITH.

PISTON ROD OILER.

No. 355,283. Patented De0.28,1886.

N. PETERS, Phuwumo n hnn Wasmugmm D, c

EJNITED STATES PATENT omen CHARLES E. TEFFT AND JAMES M. SMITH, OF LONSDALE, RHODE ISLAND, ASSIGNORS OF ONE-THIRD TO HARRY W. PORTER, SAME PLACE.

PISTON=ROD OILER.

GPECIPICATION forming part of Letters Patent No. 355,283,15lated December 28, 1886.

Application filed October 2, 1886. SerialNo. 5215;191. (No model.)

To all whom it may concern.-

Be it known that we, CHARLES E. TEFFT and JAMES M. SMITH, of Lonsdale, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Piston-Rod Oilcrs, of which the following is a specification.

Our invention consists in the improved con struction of the piston-rod oiler and the improved combination of the same with the fastening'bolts of the gland.

Figure l is a side elevation, showing our improved oiler in position upon the pistonrod and secured to the bolts of the gland.

1 Fig, 2 is a front elevation of the oiler separatefrom the piston-rod. Fig. 3 is a detail section taken in the line a: x of Fig. 2. Fig.' 4: is a side elevation of the clasping'spring which serves to hold the arms of the oiler.

In the accompanying drawings, A is the gland; B B, the fastening-bolts of the same. C is the piston-rod, and D the improved oiler, which embraces the piston-rod and is secured to the bolts B by means of the nuts H H.

The oiler D is formed of two arms, a a, hinged to each other at the point I), the said arms being made in duplex circularly-hol lowed form, as shown in the transverse section, Fig. 3, and held together in a yielding 3o manner by means of the wire spring E, which rests in the external annular depression, 0. 1n the circularly-formed annular grooves at (Z of the arms a a are placed the fibrous packing-rings c e, which completely surround the 3 5 piston-rod and form between their inner edges and the intervening surface of the piston-rod an annular chamber, f, adapted to receive and hold the oil flowing downward from the oilcup F, which is connected to one of the arms 40 a of the oiler by means of the pipe 9. To the slotted ears 7: 7; of the arms a a are also secured the flat links G G, which are provided with a perforation, 71, adapted to receive the bolt B, and with a screw-stud, t, adapted to enter the slot j in the ear'k, and by means of which the link G is loosely secured to the arm a, thus providing for an automatic ad justing movement of the oiler with the piston-rod when the same is irregularly worn or out of line, and for adjustable attachment to the bolts B B. r

The material of which the fibrous packing rings 6 e are composed is made up in cylindrical form of such diameter as to cause the arms a a to open slightly against the resilient action of the spring E. The said packingrings will thus be caused to follow any irregularity in the diameter of the piston-rod and preserve a close contact with the surface of the same, so that the surplus oil will be retained in the lower portion of the annular space f between the two packing-rings.

The spring E may be made in any desirable form operating to draw the arms a a toward each other to clasp the piston-rod in a yielding manner, and a simple oil-hole in the up per arm, a, of ,the oiler may take the place of the oil-cup F; and it is also to be understood 0 that the arms a a may be arranged upon the piston-rod without the employment of the connecting-hinge, the spring E being of itself sufoficient to hold the same.

' The slot 9 in the connecting-ears 70 allows the oiler to be readily attached to the pistonrods of engines of different construction;.but 7 for the purpose of adjustment to the irregularities of the piston-rod a very slight movement is required, and this may be secured by making a round hole in the ears slightly larger than the diameter of the screw-stud which enters the same.

WVe claim as our invention- 1. The combination of the opposite arms and the packing-rings adapted to form an annular oil-chamber with the spring for holding the packingrings against the surface of the piston-rod, and the links for attaching the oiler to the gland, substantially as described.

2. The combination of the oiler embracing the pistourod and provided with the slotted ears with the links held upon the bolts of the gland and loosely connected to the slotted ears, to allow an adjusting movement of the oiler with the piston-rod and adjustable attachment to the bolts of the gland, substantiallyas'de- 5 scribed.

CHARLES E. TEFFT. JAMES M. SMITH. 

